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【结 构 式】

【分子编号】50262

【品名】3-hydroxypropyl methanesulfonate

【CA登记号】

【 分 子 式 】C4H10O4S

【 分 子 量 】154.187

【元素组成】C 31.16% H 6.54% O 41.51% S 20.8%

与该中间体有关的原料药合成路线共 3 条

合成路线1

该中间体在本合成路线中的序号:(XXI)

The desulfurization of (XXI) with H2O2 and CaCO3 gives the chiral allylpiperidine (XXII), which is epoxidized by oxidation with OsO4, reaction of Ts-OH and treatment with K2CO3 to yield the epoxide (XXIII). The condensation of (XXIII) with quinazolinone (XXIV) by means of KOH in methanol affords the substituted propanol (XXV), which is oxidized with DMP to provide the propanone derivative (XXVI). Finally, compound (XXVI) is deprotected by treatment with refluxing 6N HCl to give the target febrifugine.

1 Taniguchi, T.; Ofasawara, K.; A diastereocontrolled synthesis of (+)-febrifugine: A potent antimalarial piperidine alkaloid. Org Lett 2000, 2, 20, 3193.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXI) 50262 3-hydroxypropyl methanesulfonate C4H10O4S 详情 详情
(XXII) 51264 benzyl (2R,3S)-2-allyl-3-(benzyloxy)-1-piperidinecarboxylate C23H27NO3 详情 详情
(XXIII) 51265 benzyl (2R,3S)-3-(benzyloxy)-2-(2-oxiranylmethyl)-1-piperidinecarboxylate C23H27NO4 详情 详情
(XXIV) 14634 4(3H)-quinazolinone C8H6N2O 详情 详情
(XXV) 51266 benzyl (2R,3S)-3-(benzyloxy)-2-[2-hydroxy-3-[4-oxo-3(4H)-quinazolinyl]propyl]-1-piperidinecarboxylate C31H33N3O5 详情 详情
(XXVI) 51267 benzyl (2R,3S)-3-(benzyloxy)-2-[2-oxo-3-[4-oxo-3(4H)-quinazolinyl]propyl]-1-piperidinecarboxylate C31H31N3O5 详情 详情

合成路线2

该中间体在本合成路线中的序号:(VI)

Conjugate addition of 4-tolylmagnesium bromide (II) to anhydroecgonine methyl ester (I) afforded regioselectively the 2-beta-carbomethoxy-3-beta-aryl tropane (III). Hydrolysis of the ester function of (III) in aqueous dioxan gave the corresponding acid (IV). Treatment of (IV) with POCl3 yielded the acid chloride (V), which was condensed with 1,3-propanediol monomesylate (VI), yielding ester (VII). Finally, nucleophilic displacement of the mesylate group of (VII) with tetrabutylammonium fluoride in refluxing THF afforded the title fluoropropyl ester.

1 Gu, X.-H.; et al.; Synthesis and biological evaluation of a series of novel N- or O-fluoroalkyl derivatives of tropane: Potential positron emission tomography (PET) imaging agents for the dopamine transporter. Bioorg Med Chem Lett 2001, 11, 23, 3049.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 21118 methyl (1R,5S)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene-2-carboxylate C10H15NO2 详情 详情
(II) 35657 bromo(4-methylphenyl)magnesium 4294-57-9 C7H7BrMg 详情 详情
(III) 50267 methyl (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylate C17H23NO2 详情 详情
(IV) 50268 (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylic acid C16H21NO2 详情 详情
(V) 50269 (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carbonyl chloride C16H20ClNO 详情 详情
(VI) 50262 3-hydroxypropyl methanesulfonate C4H10O4S 详情 详情
(VII) 50270 3-[(methylsulfonyl)oxy]propyl (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylate C20H29NO5S 详情 详情

合成路线3

该中间体在本合成路线中的序号:(VII)

Conjugate addition of 4-(trimethylsilyl)phenylmagnesium bromide (II) to anhydroecgonine methyl ester (I) afforded regioselectively the 2-beta-carbomethoxy-3-beta-aryl tropane (III). Iododesilylation of (III) using ICl or iodine in the presence of AgBF4 gave the iodophenyl derivative (IV). Hydrolysis of the ester function of (IV) in aqueous dioxan yielded the corresponding acid (V). Treatment of (V) with POCl3 provided the acid chloride (VI), which was condensed with 1,3-propanediol monomesylate (VII) to yield ester (VIII). Finally, nucleophilic displacement of the mesylate group of (VIII) with tetrabutylammonium fluoride in refluxing THF afforded the title fluoropropyl ester.

1 Gu, X.-H.; et al.; Synthesis and biological evaluation of a series of novel N- or O-fluoroalkyl derivatives of tropane: Potential positron emission tomography (PET) imaging agents for the dopamine transporter. Bioorg Med Chem Lett 2001, 11, 23, 3049.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 21118 methyl (1R,5S)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene-2-carboxylate C10H15NO2 详情 详情
(II) 50257 bromo[4-(trimethylsilyl)phenyl]magnesium C9H13BrMgSi 详情 详情
(III) 50258 methyl (1R,2S,3S,5S)-8-methyl-3-[4-(trimethylsilyl)phenyl]-8-azabicyclo[3.2.1]octane-2-carboxylate C19H29NO2Si 详情 详情
(IV) 50259 methyl (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylate C16H20INO2 详情 详情
(V) 50260 (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylic acid C15H18INO2 详情 详情
(VI) 50261 (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carbonyl chloride C15H17ClINO 详情 详情
(VII) 50262 3-hydroxypropyl methanesulfonate C4H10O4S 详情 详情
(VIII) 50263 3-[(methylsulfonyl)oxy]propyl (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylate C19H26INO5S 详情 详情
Extended Information